hi all , I'm using regex object to count occurrence of each word in a text file with (44644 words ). i put all words in Matches , then put them in a list box , and i find the number of occurrences for each word using another list box with listview . the program is work well with a small text file , but the problem when i use the text file with (44644 words). the words can be list in the box but the occurrence of each word doesn't show in listview . please can any help how solve this problem .